Pipe for smoking tobacco



Nov. 4, 1930. H. M. MCCORMICK 1,730,682

PIPE FOR SMOKING TOBACCO Filed Jan. 21, 1929 i fMy invention consists ofmeans forn'iore Patented Nov. 4, 1930 7 j HUGE MALCOLM mom osnunr neron,mnmims- I evenly and completely burning thefoharge of tobacco inthejbowl of a pipe, thereby lessening the residue of nicoti'ne and otherchemicals'in' the bottom of said bowl, l essen ing the quantity ofnicotine and other chem i c'als entering and'adhering to the walls ofthe orifice ororifices of the pipe-stem, and

fully consuming the dottle of the charge of 10 tobacco in thebottoln ofthe bowl; producfrequentlyorawn into'the mouth theing, as a consequence,a relatively dry, sweet and fragrant sm ke withoutnecessarilyaltering'either the"sl1ape, size,"weight oruse of either pipe-bowl orpipe stem, andall without the addition of any extraneous part 7 orparts; or," sp e cially shaped bowls, or stem-.

bases nextbowl s, or both stem-bases and;

bowls, can belmade at will a'wide variety ofdesigns, to emphasize' andelaborate my inventlon.

" The ast'eady flow of poisonous nicotine and other chemicals and gasesin combination, the total tending to produce a dampand acrid smoke. Inaddition, particles of moisture-soaked tobacco, commonly termed" slugs,together with considerable quantities of liquid, are

smokers s'uctionthrough the orifice or canal ofth'e pipe stem, oftendisagreeably 'spoih ing the sedative pleasure to be derived from smokingtobacco. I

The reasons for incomplete iarid imperfect V combustion or oxidation ofcharges of toba'c co in the bowl of a pipe are 1. Lack of sufficientaeration inthe surface burning zone, andin the charge below theburningzone; v 1

2. Lack of properly distributed and balanced means for inducing adequateand con stant circulation of air upon and through the charge of tobaccoin the bowl of the pipe,

in response to thedraft or, suction exerted by the smoker through theorifice or conduit of the pipe stem.

v bane of tobaccofsmoking is the more or less rapid accumulationofmoisture in and from chargesloftobacco'in the lower portionof thepipe'bowlt" From suchmoi'st properly and sufficiently consumed aoutlet-from the bowlofthe pipe into. the

TRIPE FQBlSMO KING TOBACCO- .1

7 After s g the clmiixih of tobacco ii f the bowl of a pip'e it must beconsumed by forcingla draft of air from top to bottom of, said charge,andthe completeness of combustiondepends uponthe, presence, in; said.charge, of sufficient'oxy'gen at'all times to; insure full and evenoxidation. The defect of pipesfor smoking tobacco is thatthey fail toprovide means to induce enough and sufficiently diifused circulationof-Iair through charges of tobacco in theirbo-wls, Pre'vailing provisionof only one orifice, channel or canal, connecting tllebase of the bowlof the pipe, through the stem thereof, with th mouth of the smoker, doesnotpermit ofadd quate atmospheric inhalation and circulationthroughfsaid harge, to either fully or properly consume it.

I overcome such defect as follows; b Figure 1 shows 'anobliquelsideviewof'a tobacco-pipe equipped with a plurality (m,

n, 0,)' of orifices or canals converging in the stem, a short distanceoutside the bowl, into one conduit traversing the remainder of the aStem: g I a t Figure 2 of a pipe, said bowl beingj equipped with a;plurality (a, b, 0,) of apertures.

showsa cross section of thebowl Fig. 3'is a side elevation partly insection h of an alternate form of pipe in which a sin; gle auxiliarypassage is proyided instead of two, auxiliary passages, as. shown, inFigs. 1. and2.r-. 1 i

Fig. 4 is a transverse sectional elevation on the line1.44 of Fig. 3. iv

Instead ofemploying only one aperture stem' of the pipe, I employ aplurality of orifices or canals and these rnay converge into onecentralconduit or canal within the.-

wallof thebowl, or within the stem at any f proper distance outside -thebowl of the (pipe 1 which thepipe manufacturer .or pipes moker desires,1 v r.

The mechanical operation of tobacco pipe smoking being" a down-draft(air being aperture leading from or near the base of the bowl into thestem and along this little tion of the tobacco charge, the greater theenjoyment of the smoker, and the less harmful the habitual use oftobacco. v I

In using my invention, I have noted the w following practicalimprovements and advantages:

l. A charge of tobacco in 'the bowl ofa pipe will burn steadily andevenly into dry ash, from top to bottom of bowl;

2. The conduits from the bowl into the I main canal of the pipe stem,and the main canal itself, tend to keep free of accumulations longer,and are much drier than a single canal;

.3. The smoke drawn through the pipe stem canal is pleasantly dry,fragrant and warm. Adequate combustion of the tobacco charge does notdestroy the desirable flavors and aromas thereof. Slugs and particles ofliquid seem wholly absent.

A distinct advantage of my invention is that it costs extremely littleextra to install; two, three or moreiapertures in the bowl or in bothbowl and stem can be provided almost as easily and cheaply, as one, andno extra or additional part is required.

I respectfully submit that the extreme simplicity of my invention. (itsinstant obviousness upon trial), should be no bar to obtaining LettersPatent therefor. I have myself used a. variety of devices invented andmade by others, devised and intended to keep tobacco-pipe stem conduitsfree of ob structive accumulations, at intervals for thirty years. Noneof said devices keep pipebowl bottoms clean and dry, or otherwise efiectmy results, andI pondered over and frequently discussed I the problemsnow solved by my invention, with others at intervals for many years,before I finally reasoned out what should be done to properly consume acharge of tobacco in a pipe-bowl, and thereafter discovered, and provedby experiments, that my reasoning was correct.

I therefore claim broadly the discovery that tobaccopipe-bowls andstem-conduits have been heretofore insufficiently aerated; that adequateaeration is required toefiectively, wholly and cleanly consume chargesof tobacco inthe bowls of tobacco pipes, and to keep the conduits of thestems thereof relatively free of accumulations of oily juices andsaturated particles, during the mechanical operation commonly termedpipe smok ing; though my illustration of means for accomplishing sucheffective aeration is of necessity limited in a specification. A greatbeen smoked by white menfor hundreds of years, and by North AmericanIndians for an unknown period before that. I' believe that my discovery,and my means for making it us f l y effecti e, asse forth in thisspecification, constitute one of the most pleasing,

valuable-and practically important contributions to the welfare of thoseaddicted to the genial habit of tobacco-pipe-smoking, in the wholehistory of the usage oftobacco-pipes. Every pipe smoker wishes to smell,taste and enjoy the fragrance and flavor of his tobacco. My inventiontends to improve the quality of such, fragrance and flavorby'reducing'exces's moisture gener'ated in the pipebowl and thereaftertransmitted through the conduit of the pipe-stem, in the act of smoking,also eliminates disagreeable and objectionable particles of mattercarried by such excess moisture, and, finally, consumes the unhealthfuland wasteful saturated dottle at the base of the bowl of thepipe andleaves a dry clean bowl-bottom in place of a wet bottom occupied by abitter and soggy residue.

My inventionis equally useful and applicable to curved as wellasstraight tobacco-pipestems. I prefer curved stems myself, and use onlytwoapertures as shown on Figs. 3 and 4 at e and f from pipebowl topipe-stem-conduit, the upper aperture e directly above the lower 7, thetwo converging into one pipestem-conduit about one-half-inch outside thepipes-bowl. In commercial manufacture, however, I believe threeapertures will be generally preferred, as offering better balancedaeration.

Having thus shown and described my discovery and invention, I claim:

. A pipe comprising a bowl having a stem section connected thereto, abit section having a bit thereon connected to said stem sec tion, saidstem section having a plurality of superposed smoking ducts convergingfrom the bowl and directly joining a common duct terminating in theouter end of said bit section, the smoke passage from the bowl to theend of said bit section being continuous and uninterrupted by cavitiesor wells.

HUGH MALCOLM MCCORMICK.

